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[lttngtop.git] / src / cursesdisplay.c
1 /*
2 * Copyright (C) 2011 Julien Desfossez
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License Version 2 as
6 * published by the Free Software Foundation;
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
16 * MA 02111-1307, USA.
17 */
18
19 #include <stdio.h>
20 #include <stdlib.h>
21 #include <signal.h>
22 #include <string.h>
23 #include <ncurses.h>
24 #include <panel.h>
25 #include <pthread.h>
26 #include <semaphore.h>
27
28 #include "cursesdisplay.h"
29 #include "lttngtoptypes.h"
30 #include "common.h"
31
32 #define DEFAULT_DELAY 15
33 #define MAX_LINE_LENGTH 50
34 #define MAX_LOG_LINES 4
35
36 /* to prevent concurrent updates of the different windows */
37 sem_t update_display_sem;
38
39 char *termtype;
40 WINDOW *footer, *header, *center, *status;
41 WINDOW *perf_panel_window = NULL;
42 PANEL *perf_panel, *main_panel;
43
44 int perf_panel_visible = 0;
45 int perf_line_selected = 0;
46
47 int last_display_index, currently_displayed_index;
48
49 struct processtop *selected_process = NULL;
50 int selected_tid;
51 char *selected_comm;
52 int selected_ret;
53
54 int selected_line = 0; /* select bar position */
55 int selected_in_list = 0; /* selection relative to the whole list */
56 int list_offset = 0; /* first index in the list to display (scroll) */
57 int nb_log_lines = 0;
58 char log_lines[MAX_LINE_LENGTH * MAX_LOG_LINES + MAX_LOG_LINES];
59
60 int max_elements = 80;
61
62 int toggle_threads = -1;
63 int toggle_pause = -1;
64 int toggle_tree = -1;
65
66 int max_center_lines;
67
68 pthread_t keyboard_thread;
69
70 void reset_ncurses()
71 {
72 curs_set(1);
73 endwin();
74 exit(0);
75 }
76
77 static void handle_sigterm(int signal)
78 {
79 reset_ncurses();
80 }
81
82 void init_screen()
83 {
84 initscr();
85 noecho();
86 halfdelay(DEFAULT_DELAY);
87 nonl();
88 intrflush(stdscr, false);
89 keypad(stdscr, true);
90 curs_set(0);
91
92 if (has_colors()) {
93 start_color();
94 init_pair(1, COLOR_RED, COLOR_BLACK); /* - */
95 init_pair(2, COLOR_GREEN, COLOR_BLACK); /* + */
96 init_pair(3, COLOR_BLACK, COLOR_WHITE); /* keys */
97 init_pair(4, COLOR_WHITE, COLOR_GREEN); /* keys activated */
98 init_pair(5, COLOR_WHITE, COLOR_BLUE); /* select line */
99 }
100 termtype = getenv("TERM");
101 if (!strcmp(termtype, "xterm") || !strcmp(termtype, "xterm-color") ||
102 !strcmp(termtype, "vt220")) {
103 define_key("\033[H", KEY_HOME);
104 define_key("\033[F", KEY_END);
105 define_key("\033OP", KEY_F(1));
106 define_key("\033OQ", KEY_F(2));
107 define_key("\033OR", KEY_F(3));
108 define_key("\033OS", KEY_F(4));
109 define_key("\0330U", KEY_F(6));
110 define_key("\033[11~", KEY_F(1));
111 define_key("\033[12~", KEY_F(2));
112 define_key("\033[13~", KEY_F(3));
113 define_key("\033[14~", KEY_F(4));
114 define_key("\033[16~", KEY_F(6));
115 define_key("\033[17;2~", KEY_F(18));
116 }
117 signal(SIGTERM, handle_sigterm);
118 mousemask(BUTTON1_CLICKED, NULL);
119 refresh();
120 }
121
122 WINDOW *create_window(int height, int width, int startx, int starty)
123 {
124 WINDOW *win;
125 win = newwin(height, width, startx, starty);
126 box(win, 0 , 0);
127 wrefresh(win);
128 return win;
129 }
130
131 WINDOW *create_window_no_border(int height, int width, int startx, int starty)
132 {
133 WINDOW *win;
134 win = newwin(height, width, startx, starty);
135 wrefresh(win);
136 return win;
137 }
138
139 void print_digit(WINDOW *win, int digit)
140 {
141 if (digit < 0) {
142 wattron(win, COLOR_PAIR(1));
143 wprintw(win, "%d", digit);
144 wattroff(win, COLOR_PAIR(1));
145 } else if (digit > 0) {
146 wattron(win, COLOR_PAIR(2));
147 wprintw(win, "+%d", digit);
148 wattroff(win, COLOR_PAIR(2));
149 } else {
150 wprintw(win, "0");
151 }
152 }
153
154 void print_digits(WINDOW *win, int first, int second)
155 {
156 wprintw(win, "(");
157 print_digit(win, first);
158 wprintw(win, ", ");
159 print_digit(win, second);
160 wprintw(win, ")");
161 }
162
163 void print_headers(int line, char *desc, int value, int first, int second)
164 {
165 wattron(header, A_BOLD);
166 mvwprintw(header, line, 4, "%s", desc);
167 wattroff(header, A_BOLD);
168 mvwprintw(header, line, 16, "N/A", value);
169 wmove(header, line, 24);
170 print_digits(header, first, second);
171 wmove(header, line, 40);
172 }
173
174 void set_window_title(WINDOW *win, char *title)
175 {
176 wattron(win, A_BOLD);
177 mvwprintw(win, 0, 1, title);
178 wattroff(win, A_BOLD);
179 }
180
181 void print_log(char *str)
182 {
183 int i;
184 int current_line = 1;
185 int current_char = 1;
186 char *tmp, *tmp2;
187 /* rotate the line buffer */
188 if (nb_log_lines >= MAX_LOG_LINES) {
189 tmp = strndup(log_lines, MAX_LINE_LENGTH * MAX_LOG_LINES + MAX_LOG_LINES);
190 tmp2 = strchr(tmp, '\n');
191 memset(log_lines, '\0', strlen(log_lines));
192 strncat(log_lines, tmp2 + 1, strlen(tmp2) - 1);
193 log_lines[strlen(log_lines)] = '\n';
194 log_lines[strlen(log_lines)] = '\0';
195 free(tmp);
196 }
197 nb_log_lines++;
198
199 strncat(log_lines, str, MAX_LINE_LENGTH - 1);
200
201 if (nb_log_lines < MAX_LOG_LINES)
202 log_lines[strlen(log_lines)] = '\n';
203 log_lines[strlen(log_lines)] = '\0';
204
205 werase(status);
206 box(status, 0 , 0);
207 set_window_title(status, "Status");
208 for (i = 0; i < strlen(log_lines); i++) {
209 if (log_lines[i] == '\n') {
210 wmove(status, ++current_line, 1);
211 current_char = 1;
212 } else {
213 mvwprintw(status, current_line, current_char++, "%c", log_lines[i]);
214 }
215 }
216 wrefresh(status);
217 }
218
219 void print_key(WINDOW *win, char *key, char *desc, int toggle)
220 {
221 int pair;
222 if (toggle > 0)
223 pair = 4;
224 else
225 pair = 3;
226 wattron(win, COLOR_PAIR(pair));
227 wprintw(footer, "%s", key);
228 wattroff(win, COLOR_PAIR(pair));
229 wprintw(footer, ":%s", desc);
230 }
231
232 void update_footer()
233 {
234 sem_wait(&update_display_sem);
235 werase(footer);
236 wmove(footer, 1, 1);
237 print_key(footer, "F2", "CPUtop ", current_view == cpu);
238 print_key(footer, "F3", "PerfTop ", current_view == perf);
239 print_key(footer, "F6", "IOTop ", current_view == iostream);
240 print_key(footer, "Enter", "Details ", current_view == process_details);
241 print_key(footer, "q", "Quit | ", 0);
242 print_key(footer, "P", "Perf Pref ", 0);
243 print_key(footer, "p", "Pause ", toggle_pause);
244
245 wrefresh(footer);
246 sem_post(&update_display_sem);
247 }
248
249 void basic_header()
250 {
251 werase(header);
252 box(header, 0 , 0);
253 set_window_title(header, "Statistics for interval [gathering data...[");
254 wattron(header, A_BOLD);
255 mvwprintw(header, 1, 4, "CPUs");
256 mvwprintw(header, 2, 4, "Processes");
257 mvwprintw(header, 3, 4, "Threads");
258 mvwprintw(header, 4, 4, "Files");
259 mvwprintw(header, 5, 4, "Network");
260 mvwprintw(header, 6, 4, "IO");
261 wattroff(header, A_BOLD);
262 wrefresh(header);
263 }
264
265 void update_header()
266 {
267 werase(header);
268 box(header, 0 , 0);
269 set_window_title(header, "Statistics for interval ");
270 wattron(header, A_BOLD);
271 /*
272 wprintw(header, "[%lu.%lu, %lu.%lu[",
273 data->start.tv_sec, data->start.tv_nsec,
274 data->end.tv_sec, data->end.tv_nsec);
275 */
276 wprintw(header, "[%lu, %lu[",
277 data->start,
278 data->end);
279 mvwprintw(header, 1, 4, "CPUs");
280 wattroff(header, A_BOLD);
281 wprintw(header, "\t%d\t(max/cpu : %0.2f%)", data->cpu_table->len,
282 100.0/data->cpu_table->len);
283 print_headers(2, "Processes", data->nbproc, data->nbnewproc,
284 -1*(data->nbdeadproc));
285 print_headers(3, "Threads", data->nbthreads, data->nbnewthreads,
286 -1*(data->nbdeadthreads));
287 print_headers(4, "Files", data->nbfiles, data->nbnewfiles,
288 -1*(data->nbclosedfiles));
289 mvwprintw(header, 4, 43, "N/A kbytes/sec");
290 print_headers(5, "Network", 114, 0, 0);
291 mvwprintw(header, 5, 43, "N/A Mbytes/sec");
292 wrefresh(header);
293 }
294
295 gint sort_by_cpu_desc(gconstpointer p1, gconstpointer p2)
296 {
297 struct processtop *n1 = *(struct processtop **)p1;
298 struct processtop *n2 = *(struct processtop **)p2;
299 unsigned long totaln1 = n1->totalcpunsec;
300 unsigned long totaln2 = n2->totalcpunsec;
301
302 if (totaln1 < totaln2)
303 return 1;
304 if (totaln1 == totaln2)
305 return 0;
306 return -1;
307 }
308
309 gint sort_by_cpu_group_by_threads_desc(gconstpointer p1, gconstpointer p2)
310 {
311 struct processtop *n1 = *(struct processtop **)p1;
312 struct processtop *n2 = *(struct processtop **)p2;
313 unsigned long totaln1 = n1->threadstotalcpunsec;
314 unsigned long totaln2 = n2->threadstotalcpunsec;
315
316 if (totaln1 < totaln2)
317 return 1;
318 if (totaln1 == totaln2)
319 return 0;
320 return -1;
321 }
322
323 void update_cputop_display()
324 {
325 int i;
326 int header_offset = 2;
327 struct processtop *tmp;
328 unsigned long elapsed;
329 double maxcputime;
330 int nblinedisplayed = 0;
331 int current_line = 0;
332
333 elapsed = data->end - data->start;
334 maxcputime = elapsed * data->cpu_table->len / 100.0;
335
336 g_ptr_array_sort(data->process_table, sort_by_cpu_desc);
337
338 set_window_title(center, "CPU Top");
339 wattron(center, A_BOLD);
340 mvwprintw(center, 1, 1, "CPU(%)");
341 mvwprintw(center, 1, 12, "TGID");
342 mvwprintw(center, 1, 22, "PID");
343 mvwprintw(center, 1, 32, "NAME");
344 wattroff(center, A_BOLD);
345
346 max_center_lines = LINES - 7 - 7 - 1 - header_offset;
347
348 /* iterate the process (thread) list */
349 for (i = list_offset; i < data->process_table->len &&
350 nblinedisplayed < max_center_lines; i++) {
351 tmp = g_ptr_array_index(data->process_table, i);
352
353 if (current_line == selected_line) {
354 selected_process = tmp;
355 selected_tid = tmp->tid;
356 selected_comm = tmp->comm;
357 wattron(center, COLOR_PAIR(5));
358 mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
359 }
360 /* CPU(%) */
361 mvwprintw(center, current_line + header_offset, 1, "%1.2f",
362 tmp->totalcpunsec / maxcputime);
363 /* TGID */
364 mvwprintw(center, current_line + header_offset, 12, "%d", tmp->pid);
365 /* PID */
366 mvwprintw(center, current_line + header_offset, 22, "%d", tmp->tid);
367 /* NAME */
368 mvwprintw(center, current_line + header_offset, 32, "%s", tmp->comm);
369 wattroff(center, COLOR_PAIR(5));
370 nblinedisplayed++;
371 current_line++;
372 }
373 }
374
375 gint sort_perf(gconstpointer p1, gconstpointer p2, gpointer key)
376 {
377 struct processtop *n1 = *(struct processtop **) p1;
378 struct processtop *n2 = *(struct processtop **) p2;
379
380 struct perfcounter *tmp1, *tmp2;
381 unsigned long totaln2 = 0;
382 unsigned long totaln1 = 0;
383
384 if (!key)
385 return 0;
386
387 tmp1 = g_hash_table_lookup(n1->perf, key);
388 if (!tmp1)
389 totaln1 = 0;
390 else
391 totaln1 = tmp1->count;
392
393 tmp2 = g_hash_table_lookup(n2->perf, key);
394 if (!tmp2)
395 totaln2 = 0;
396 else
397 totaln2 = tmp2->count;
398
399 if (totaln1 < totaln2)
400 return 1;
401 if (totaln1 == totaln2) {
402 totaln1 = n1->tid;
403 totaln2 = n2->tid;
404 if (totaln1 < totaln2)
405 return 1;
406 return -1;
407 }
408 return -1;
409 }
410
411 void print_key_title(char *key, int line)
412 {
413 wattron(center, A_BOLD);
414 mvwprintw(center, line, 1, "%s\t", key);
415 wattroff(center, A_BOLD);
416 }
417
418 void update_process_details()
419 {
420 unsigned long elapsed;
421 double maxcputime;
422 struct processtop *tmp = find_process_tid(data, selected_tid, selected_comm);
423
424 set_window_title(center, "Process details");
425
426
427 elapsed = data->end - data->start;
428 maxcputime = elapsed * data->cpu_table->len / 100.0;
429
430 print_key_title("Name", 1);
431 wprintw(center, "%s", selected_comm);
432 print_key_title("TID", 2);
433 wprintw(center, "%d", selected_tid);
434 if (!tmp) {
435 print_key_title("Does not exit at this time", 3);
436 return;
437 }
438
439 print_key_title("PID", 3);
440 wprintw(center, "%d", tmp->pid);
441 print_key_title("PPID", 4);
442 wprintw(center, "%d", tmp->ppid);
443 print_key_title("CPU", 5);
444 wprintw(center, "%1.2f %%", tmp->totalcpunsec/maxcputime);
445 }
446
447 void update_perf()
448 {
449 int i, j;
450 int nblinedisplayed = 0;
451 int current_line = 0;
452 struct processtop *tmp;
453 int header_offset = 2;
454 int perf_row = 40;
455 struct perfcounter *perfn1, *perfn2;
456 char *perf_key = NULL;
457 int value;
458 GHashTableIter iter;
459 gpointer key;
460
461 set_window_title(center, "Perf Top");
462 wattron(center, A_BOLD);
463 mvwprintw(center, 1, 1, "PID");
464 mvwprintw(center, 1, 11, "TID");
465 mvwprintw(center, 1, 22, "NAME");
466
467 perf_row = 40;
468 g_hash_table_iter_init(&iter, data->perf_list);
469 while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
470 if (perfn1->visible) {
471 /* + 6 to strip the "_perf_" prefix */
472 mvwprintw(center, 1, perf_row, "%s",
473 (char *) key + 6);
474 perf_row += 20;
475 }
476 if (perfn1->sort) {
477 perf_key = (char *) key;
478 }
479 }
480
481 wattroff(center, A_BOLD);
482
483 g_ptr_array_sort_with_data(data->process_table, sort_perf, perf_key);
484
485 for (i = 0; i < data->process_table->len &&
486 nblinedisplayed < max_center_lines; i++) {
487 tmp = g_ptr_array_index(data->process_table, i);
488
489 if (current_line == selected_line) {
490 selected_process = tmp;
491 wattron(center, COLOR_PAIR(5));
492 mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
493 }
494
495 mvwprintw(center, current_line + header_offset, 1, "%d", tmp->pid);
496 mvwprintw(center, current_line + header_offset, 11, "%d", tmp->tid);
497 mvwprintw(center, current_line + header_offset, 22, "%s", tmp->comm);
498
499 g_hash_table_iter_init(&iter, data->perf_list);
500
501 perf_row = 40;
502 while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfn1)) {
503 if (perfn1->visible) {
504 perfn2 = g_hash_table_lookup(tmp->perf, (char *) key);
505 if (perfn2)
506 value = perfn2->count;
507 else
508 value = 0;
509 mvwprintw(center, current_line + header_offset, perf_row, "%d", value);
510 perf_row += 20;
511 }
512 }
513
514 wattroff(center, COLOR_PAIR(5));
515 nblinedisplayed++;
516 current_line++;
517 }
518 }
519
520 void update_fileio()
521 {
522 int i;
523 int offset;
524
525 set_window_title(center, "IO Top");
526 wattron(center, A_BOLD);
527 mvwprintw(center, 1, 10, "READ");
528 mvwprintw(center, 2, 1, "bytes");
529 mvwprintw(center, 2, 15, "bytes/sec");
530
531 mvwprintw(center, 1, 39, "WRITE");
532 mvwprintw(center, 2, 33, "bytes");
533 mvwprintw(center, 2, 45, "bytes/sec");
534
535 if (toggle_threads > 0) {
536 mvwprintw(center, 1, 60, "TGID");
537 mvwprintw(center, 1, 70, "PID");
538 offset = 8;
539 } else {
540 mvwprintw(center, 1, 60, "PID(TGID)");
541 offset = 0;
542 }
543 mvwprintw(center, 1, 72 + offset, "NAME");
544 wattroff(center, A_BOLD);
545
546 for (i = 3; i < LINES - 3 - 8 - 1; i++) {
547 mvwprintw(center, i, 1, "%d", i*1000);
548 mvwprintw(center, i, 15, "%dk", i);
549 mvwprintw(center, i, 28, "| %d", i*2000);
550 mvwprintw(center, i, 45, "%dk", i*2);
551 if (toggle_threads > 0) {
552 mvwprintw(center, i, 57, "| %d", i);
553 mvwprintw(center, i, 70, "%d", i);
554 } else {
555 mvwprintw(center, i, 57, "| %d", i);
556 }
557 mvwprintw(center, i, 72 + offset, "process_%d", i);
558 }
559 }
560
561 gint sort_by_ret_desc(gconstpointer p1, gconstpointer p2)
562 {
563 struct processtop *n1 = *(struct processtop **)p1;
564 struct processtop *n2 = *(struct processtop **)p2;
565 unsigned long totaln1 = n1->iostream->ret_total;
566 unsigned long totaln2 = n2->iostream->ret_total;
567
568 if (totaln1 < totaln2)
569 return 1;
570 if (totaln1 == totaln2)
571 return 0;
572 return -1;
573 }
574
575 void update_iostream()
576 {
577 int i;
578 int header_offset = 2;
579 struct processtop *tmp;
580 int nblinedisplayed = 0;
581 int current_line = 0;
582
583 set_window_title(center, "IO Top");
584 wattron(center, A_BOLD);
585 mvwprintw(center, 1, 1, "READ (B/s)");
586 mvwprintw(center, 1, 20, "WRITE (B/s)");
587
588 mvwprintw(center, 1, 40, "TOTAL STREAM");
589
590 mvwprintw(center, 1, 60, "TGID");
591 mvwprintw(center, 1, 80, "PID");
592
593 mvwprintw(center, 1, 92, "NAME");
594 wattroff(center, A_BOLD);
595
596 g_ptr_array_sort(data->process_table, sort_by_ret_desc);
597
598 for (i = list_offset; i < data->process_table->len &&
599 nblinedisplayed < max_center_lines; i++) {
600 tmp = g_ptr_array_index(data->process_table, i);
601
602 if (current_line == selected_line) {
603 selected_process = tmp;
604 selected_tid = tmp->tid;
605 selected_comm = tmp->comm;
606 wattron(center, COLOR_PAIR(5));
607 mvwhline(center, current_line + header_offset, 1, ' ', COLS-3);
608 }
609 /* READ (bytes/sec) */
610 mvwprintw(center, current_line + header_offset, 1, "%lu",
611 tmp->iostream->ret_read);
612
613 /* WRITE (bytes/sec) */
614 mvwprintw(center, current_line + header_offset, 20, "%lu",
615 tmp->iostream->ret_write);
616
617 /* TOTAL STREAM */
618 if(tmp->iostream->ret_total >= 1000000)
619 mvwprintw(center, current_line + header_offset, 40, "%lu MB",
620 tmp->iostream->ret_total/1000000);
621 else if(tmp->iostream->ret_total >=1000)
622 mvwprintw(center, current_line + header_offset, 40, "%lu KB",
623 tmp->iostream->ret_total/1000);
624 else
625 mvwprintw(center, current_line + header_offset, 40, "%lu B",
626 tmp->iostream->ret_total);
627 /* TGID */
628 mvwprintw(center, current_line + header_offset, 60, "%d", tmp->pid);
629 /* PID */
630 mvwprintw(center, current_line + header_offset, 80, "%d", tmp->tid);
631 /* NAME */
632 mvwprintw(center, current_line + header_offset, 92, "%s", tmp->comm);
633 wattroff(center, COLOR_PAIR(5));
634 nblinedisplayed++;
635 current_line++;
636 }
637 }
638
639 void update_current_view()
640 {
641 sem_wait(&update_display_sem);
642 if (!data)
643 return;
644 update_header();
645
646 werase(center);
647 box(center, 0, 0);
648 switch (current_view) {
649 case cpu:
650 update_cputop_display();
651 break;
652 case perf:
653 update_perf();
654 break;
655 case process_details:
656 update_process_details();
657 break;
658 case fileio:
659 update_fileio();
660 break;
661 case iostream:
662 update_iostream();
663 break;
664 case tree:
665 update_cputop_display();
666 break;
667 default:
668 break;
669 }
670 update_panels();
671 doupdate();
672 sem_post(&update_display_sem);
673 }
674
675 void setup_perf_panel()
676 {
677 int size;
678 if (!data)
679 return;
680 if (perf_panel_window) {
681 del_panel(perf_panel);
682 delwin(perf_panel_window);
683 }
684 size = g_hash_table_size(data->perf_list);
685 perf_panel_window = create_window(size + 2, 30, 10, 10);
686 perf_panel = new_panel(perf_panel_window);
687 perf_panel_visible = 0;
688 hide_panel(perf_panel);
689 }
690
691 void update_perf_panel(int line_selected, int toggle_view, int toggle_sort)
692 {
693 int i;
694 struct perfcounter *perf;
695 GList *perflist;
696
697 if (!data)
698 return;
699
700 werase(perf_panel_window);
701 box(perf_panel_window, 0 , 0);
702 set_window_title(perf_panel_window, "Perf Preferences ");
703 wattron(perf_panel_window, A_BOLD);
704 mvwprintw(perf_panel_window, g_hash_table_size(data->perf_list) + 1, 1, " 's' to sort");
705 wattroff(perf_panel_window, A_BOLD);
706
707 if (toggle_sort == 1) {
708 i = 0;
709 perflist = g_list_first(g_hash_table_get_keys(data->perf_list));
710 while (perflist) {
711 perf = g_hash_table_lookup(data->perf_list, perflist->data);
712 if (i != line_selected)
713 perf->sort = 0;
714 else
715 perf->sort = 1;
716 i++;
717 perflist = g_list_next(perflist);
718 }
719 update_current_view();
720 }
721
722 i = 0;
723 perflist = g_list_first(g_hash_table_get_keys(data->perf_list));
724 while (perflist) {
725 perf = g_hash_table_lookup(data->perf_list, perflist->data);
726 if (i == line_selected && toggle_view == 1) {
727 perf->visible = perf->visible == 1 ? 0:1;
728 update_current_view();
729 }
730 if (i == line_selected) {
731 wattron(perf_panel_window, COLOR_PAIR(5));
732 mvwhline(perf_panel_window, i + 1, 1, ' ', 30 - 2);
733 }
734 if (perf->sort == 1)
735 wattron(perf_panel_window, A_BOLD);
736 mvwprintw(perf_panel_window, i + 1, 1, "[%c] %s",
737 perf->visible == 1 ? 'x' : ' ',
738 (char *) perflist->data + 6);
739 wattroff(perf_panel_window, A_BOLD);
740 wattroff(perf_panel_window, COLOR_PAIR(5));
741 i++;
742 perflist = g_list_next(perflist);
743 }
744 update_panels();
745 doupdate();
746 }
747
748
749 void toggle_perf_panel(void)
750 {
751 if (perf_panel_visible) {
752 hide_panel(perf_panel);
753 perf_panel_visible = 0;
754 } else {
755 setup_perf_panel();
756 update_perf_panel(perf_line_selected, 0, 0);
757 show_panel(perf_panel);
758 perf_panel_visible = 1;
759 }
760 update_panels();
761 doupdate();
762 }
763
764 void display(unsigned int index)
765 {
766 last_display_index = index;
767 currently_displayed_index = index;
768 data = g_ptr_array_index(copies, index);
769 if (!data)
770 return;
771 max_elements = data->process_table->len;
772 update_current_view();
773 update_footer();
774 update_panels();
775 doupdate();
776 }
777
778 void pause_display()
779 {
780 toggle_pause = 1;
781 print_log("Pause");
782 sem_wait(&pause_sem);
783 }
784
785 void resume_display()
786 {
787 toggle_pause = -1;
788 print_log("Resume");
789 sem_post(&pause_sem);
790 }
791
792 void *handle_keyboard(void *p)
793 {
794 int ch;
795 while((ch = getch())) {
796 switch(ch) {
797 /* Move the cursor and scroll */
798 case KEY_DOWN:
799 if (perf_panel_visible) {
800 if (perf_line_selected < g_hash_table_size(data->perf_list) - 1)
801 perf_line_selected++;
802 update_perf_panel(perf_line_selected, 0, 0);
803 } else {
804 if (selected_line < (max_center_lines - 1) &&
805 selected_line < max_elements - 1) {
806 selected_line++;
807 selected_in_list++;
808 } else if (selected_in_list < (max_elements - 1)
809 && (list_offset < (max_elements - max_center_lines))) {
810 selected_in_list++;
811 list_offset++;
812 }
813 update_current_view();
814 }
815 break;
816 case KEY_NPAGE:
817 if ((selected_line + 10 < max_center_lines - 1) &&
818 ((selected_line + 10) < max_elements - 1)) {
819 selected_line += 10;
820 selected_in_list += 10;
821 } else if (max_elements > max_center_lines) {
822 selected_line = max_center_lines - 1;
823 if (selected_in_list + 10 < max_elements - 1) {
824 selected_in_list += 10;
825 list_offset += (selected_in_list - max_center_lines + 1);
826 }
827 } else if (selected_line + 10 > max_elements) {
828 selected_line = max_elements - 1;
829 }
830 update_current_view();
831 break;
832 case KEY_UP:
833 if (perf_panel_visible) {
834 if (perf_line_selected > 0)
835 perf_line_selected--;
836 update_perf_panel(perf_line_selected, 0, 0);
837 } else {
838 if (selected_line > 0) {
839 selected_line--;
840 selected_in_list--;
841 } else if (selected_in_list > 0 && list_offset > 0) {
842 selected_in_list--;
843 list_offset--;
844 }
845 update_current_view();
846 }
847 break;
848 case KEY_PPAGE:
849 if (selected_line - 10 > 0)
850 selected_line -= 10;
851 else
852 selected_line = 0;
853 update_current_view();
854 break;
855
856 /* Navigate the history with arrows */
857 case KEY_LEFT:
858 if (currently_displayed_index > 0) {
859 currently_displayed_index--;
860 print_log("Going back in time");
861 } else {
862 print_log("Cannot rewind, last data is already displayed");
863 }
864 data = g_ptr_array_index(copies, currently_displayed_index);
865 max_elements = data->process_table->len;
866
867 /* we force to pause the display when moving in time */
868 if (toggle_pause < 0)
869 pause_display();
870
871 update_current_view();
872 update_footer();
873 break;
874 case KEY_RIGHT:
875 if (currently_displayed_index < last_display_index) {
876 currently_displayed_index++;
877 print_log("Going forward in time");
878 data = g_ptr_array_index(copies, currently_displayed_index);
879 max_elements = data->process_table->len;
880 update_current_view();
881 update_footer();
882 } else {
883 print_log("Manually moving forward");
884 sem_post(&timer);
885 /* we force to resume the refresh when moving forward */
886 if (toggle_pause > 0)
887 resume_display();
888 }
889
890 break;
891 case ' ':
892 if (perf_panel_visible)
893 update_perf_panel(perf_line_selected, 1, 0);
894 break;
895 case 's':
896 if (perf_panel_visible)
897 update_perf_panel(perf_line_selected, 0, 1);
898 break;
899
900 case 13: /* FIXME : KEY_ENTER ?? */
901 if (current_view == cpu) {
902 current_view = process_details;
903 }
904 update_current_view();
905 break;
906
907 case KEY_F(1):
908 toggle_tree *= -1;
909 current_view = cpu;
910 update_current_view();
911 break;
912 case KEY_F(2):
913 current_view = cpu;
914 update_current_view();
915 break;
916 case KEY_F(3):
917 current_view = perf;
918 toggle_tree = -1;
919 update_current_view();
920 break;
921 case KEY_F(4):
922 current_view = fileio;
923 toggle_tree = -1;
924 update_current_view();
925 break;
926 case KEY_F(5):
927 current_view = netio;
928 toggle_tree = -1;
929 update_current_view();
930 break;
931 case KEY_F(6):
932 current_view = iostream;
933 toggle_tree = -1;
934 update_current_view();
935 break;
936 case KEY_F(10):
937 case 'q':
938 reset_ncurses();
939 break;
940 case 't':
941 toggle_threads *= -1;
942 update_current_view();
943 break;
944 case 'p':
945 if (toggle_pause < 0) {
946 pause_display();
947 } else {
948 resume_display();
949 }
950 break;
951 case 'P':
952 toggle_perf_panel();
953 break;
954 default:
955 /*
956 * commented because it makes the list refresh in different order
957 * if we sort and there are equal values
958 if (data)
959 update_current_view();
960 */
961 break;
962 }
963 update_footer();
964 }
965 return NULL;
966 }
967
968 void init_ncurses()
969 {
970 sem_init(&update_display_sem, 0, 1);
971 init_screen();
972
973 header = create_window(7, COLS - 1, 0, 0);
974 center = create_window(LINES - 7 - 7, COLS - 1, 7, 0);
975 status = create_window(MAX_LOG_LINES + 2, COLS - 1, LINES - 7, 0);
976 footer = create_window(1, COLS - 1, LINES - 1, 0);
977
978 print_log("Starting display");
979
980 main_panel = new_panel(center);
981 setup_perf_panel();
982
983 current_view = cpu;
984
985 basic_header();
986 update_footer();
987
988 pthread_create(&keyboard_thread, NULL, handle_keyboard, (void *)NULL);
989 }
990
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